For the past couple of weeks I have been making mp3s/music videos on all the music in POTCO. They are directly from the phase files so here you go.
These are stored on my SkyDrive account. Please PM if there are any problems with it.

NOTE: The Port Royal one has all three combined into one mp3.
Link (Updated March 20, 2012):

dude thank you so much!!! i was looking for ravens cove day, night and combat music but then you come in and put all the music form the game. EVEN BETTER THAN I EXPECTED. anyways thanks. If you see me around pirates online my pirate name is Capt Vish. Thats Capt with a capital C and WITHOUT a period after capt. Thanks again!